Mixed modified weighted bit-flipping LDPC decoding algorithm
A technology of weighted bit flipping and decoding algorithm, which is applied in the field of LDPC decoding algorithm with mixed modified weighted bit flipping, and can solve problems such as gaps
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[0046] The invention belongs to a mixed modified weighted bit-flipping LDPC decoding algorithm (Mixed Modified Weighted Bit-Flipping, MM-WBF) in the technical field of digital information transmission, and the specific implementation of the algorithm is now described.
[0047] Such as figure 1 Shown is the specific implementation of the algorithm of the present invention for (L, K) LDPC codes, wherein L represents the code word length, and K represents the information bit length. Set H=[H mn ] is the parity check matrix of the LDPC code, that is, a matrix of W rows and L columns composed of 0 and 1, W≥L-K. N(m)={n:H mn =1} means all bit nodes participating in check node m, M(n)={m:H mn =1} means all check nodes that have bit node n participating. N(m)\n represents all other bit nodes participating in check node m except n, and M(n)\m represents all other check nodes participating in bit node n except m.
[0048] Let LDPC code word c={c 1 ,c 2 ,...,c L} through x n =2c...
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